Modelling suggests the adjuvanted vaccine is more effective in the elderly compared to traditional flu vaccines, especially during years where there is a mismatch between the flu strains in the vaccine and those circulating in the real world.

It uses an adjuvant which helps the body’s immune system develop a strong response to flu, and has been specifically designed for people over 65 whose immune systems are weakening through immunosenescence.

Dr Kassianos told GPonline: 'The only thing we can do as GPs is order the adjuvanted vaccine for next year. It is really the best we have at the moment for the elderly, it covers much better than the conventional vaccine, but we haven't got it this year - I wish we did.

'It has also been shown to work on the drifting H3N2 strain and the antibodies last for longer and at a much higher level. We are heading towards reducing GP consultations and respiratory attendance to emergency departments.'

Is the current vaccine up to scratch?

There has been growing concern over the current vaccination programme’s effectiveness in recent years.

The Joint Committee for Vaccinations and Immunisations (JCVI), which advises the government on vaccinations, described the results as ‘disappointing’, warning that it appears to be the latest in an emerging trend for lower effectiveness against the H3N2 flu strain in this age group.

H3N2 has dominated recent seasons, and the committee has decided that ‘proper consideration’ on the benefits of the over-65s programme should take place.

It has brought forward plans on ‘reviewing the entire programme’, which were initially set to take place in 2020, once the paediatric programme had been fully rolled out in primary schools.

This will also allow it to consider the new influenza vaccines, including the adjuvanted vaccine, which are incoming to the UK market, it said.